PT303J2

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NTC Thermistors are a type of temperature sensing component used in sensing temperature and controlling system performance. One of the NTC thermistors used for sensing temperature is the PT303J2.

The PT303J2 is a negative temperature coefficient thermistor (NTC), which means its electrical resistance decreases as temperature increases. The PT303J2 is an open-air sensing thermistor, meaning it is non-encapsulated and has exposed element. This thermistor is designed to detect temperatures between -50°C and 65°C, and has a high thermal time constant, making it ideal for voltage regulation and thermal protection.

The PT303J2 has many possible applications, including:

• Refrigerators and air conditioners
• Lighting fixtures, TVs, and audio devices
• Cars, motorcycles, and motors
• Telephones, faxes, and printing machines
• Computer standby detection
• AC power relays
• Air flow detection
• Thermal protection devices

The PT303J2 works by sensing the change in temperature and generating an electrical signal. This signal is then used to control the system’s performance by either turning the system off or on, or decreasing or increasing its power output. This thermistor has a high electrical insulation compared to other thermistors, making it resistant to breakdown.

The PT303J2 thermistor has a small size, meaning it can be used in compact systems. It has an operating temperature range of -50°C to 65°C and a thermal time constant of 3.5s. This thermistor comes with an 85mm lead, and it is rated for a maximum voltage of 300V. The PT303J2 is also RoHS and REACH compliant.

In summary, the PT303J2 is a negative temperature coefficient thermistor that provides many applications, including thermal protection, voltage regulation, and air flow detection. It has an operating temperature range between -50°C and 65°C, and a thermal time constant of 3.5s. The PT303J2 is RoHS and REACH compliant, making it a safe and reliable choice for temperature sensing and control.

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